Electric drive for a mixer drum
AssigneeZF Friedrichshafen AG
InventorsEduard Heilig, Udo Brehmer, Raphael Zohner
Life of this patent
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Abstract
An electric drive for a mixer drum, including a high-voltage DC voltage power supply to which at least one battery, a power converter and at least one external interface for connecting a stationary electric power supply are connected. The at least one battery is charged only via the at least one external interface, wherein a controller is configured to control flows of energy from and to components connected to the high-voltage DC voltage power supply.
Claims11
An electric drive, comprising:
- a high-voltage DC voltage power supply to which at least one battery, a power converter and at least one external interface for connecting a stationary electric power supply are connected;
- a mixer drum;
- and
- an electric motor connected to the power converter and configured to rotate the mixer drum,
- wherein the at least one battery is charged only via the at least one external interface, wherein a controller is configured to control flows of energy from and to components connected to the high-voltage DC voltage power supply.
A method for operating an electric drive for a mixer drum having a high-voltage DC voltage power supply, the method comprising:
- connecting at least one battery, a power converter and at least one external interface for connecting a stationary electric power supply to the high-voltage DC voltage power supply, wherein the at least one battery is charged only via the at least one external interface;
- providing a controller which controls flows of energy from and to components connected to the high-voltage DC voltage power supply;
- and
- rotating the mixer drum via the controller.
An electric drive for a mixer drum, comprising a high-voltage DC voltage power supply to which at least one battery, a power converter and at least one external interface for connecting a stationary electric power supply are connected,
- wherein the at least one battery is charged only via the at least one external interface,
- wherein a controller is configured to control flows of energy from and to components connected to the high-voltage DC voltage power supply, and
- wherein the controller controls charging of the at least one battery on the basis of further available stationary power supplies or on the basis of a future energy demand.
Dependencies are inferred from the claim text.